Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 apic changes from Ingo Molnar:
 "The main changes in this cycle were:

   - Numachip updates: new hardware support, fixes and cleanups.
     (Daniel J Blueman)

   - misc smaller cleanups and fixlets"

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/io_apic: Make eoi_ioapic_pin() static
  x86/irq: Drop unlikely before IS_ERR_OR_NULL
  x86/x2apic: Make stub functions available even if !CONFIG_X86_LOCAL_APIC
  x86/apic: Deinline various functions
  x86/numachip: Fix timer build conflict
  x86/numachip: Introduce Numachip2 timer mechanisms
  x86/numachip: Add Numachip IPI optimisations
  x86/numachip: Add Numachip2 APIC support
  x86/numachip: Cleanup Numachip support

3 files changed, 98 insertions, 166 deletions

diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index ebf6d5e5668c..a30316bf801a 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -115,6 +115,59 @@ static inline bool apic_is_x2apic_enabled(void)
         return msr & X2APIC_ENABLE;
 }
 
+extern void enable_IR_x2apic(void);
+
+extern int get_physical_broadcast(void);
+
+extern int lapic_get_maxlvt(void);
+extern void clear_local_APIC(void);
+extern void disconnect_bsp_APIC(int virt_wire_setup);
+extern void disable_local_APIC(void);
+extern void lapic_shutdown(void);
+extern void sync_Arb_IDs(void);
+extern void init_bsp_APIC(void);
+extern void setup_local_APIC(void);
+extern void init_apic_mappings(void);
+void register_lapic_address(unsigned long address);
+extern void setup_boot_APIC_clock(void);
+extern void setup_secondary_APIC_clock(void);
+extern int APIC_init_uniprocessor(void);
+
+#ifdef CONFIG_X86_64
+static inline int apic_force_enable(unsigned long addr)
+{
+        return -1;
+}
+#else
+extern int apic_force_enable(unsigned long addr);
+#endif
+
+extern int apic_bsp_setup(bool upmode);
+extern void apic_ap_setup(void);
+
+/*
+ * On 32bit this is mach-xxx local
+ */
+#ifdef CONFIG_X86_64
+extern int apic_is_clustered_box(void);
+#else
+static inline int apic_is_clustered_box(void)
+{
+        return 0;
+}
+#endif
+
+extern int setup_APIC_eilvt(u8 lvt_off, u8 vector, u8 msg_type, u8 mask);
+
+#else /* !CONFIG_X86_LOCAL_APIC */
+static inline void lapic_shutdown(void) { }
+#define local_apic_timer_c2_ok          1
+static inline void init_apic_mappings(void) { }
+static inline void disable_local_APIC(void) { }
+# define setup_boot_APIC_clock x86_init_noop
+# define setup_secondary_APIC_clock x86_init_noop
+#endif /* !CONFIG_X86_LOCAL_APIC */
+
 #ifdef CONFIG_X86_X2APIC
 /*
  * Make previous memory operations globally visible before
@@ -186,67 +239,14 @@ static inline int x2apic_enabled(void)
 }
 
 #define x2apic_supported()      (cpu_has_x2apic)
-#else
+#else /* !CONFIG_X86_X2APIC */
 static inline void check_x2apic(void) { }
 static inline void x2apic_setup(void) { }
 static inline int x2apic_enabled(void) { return 0; }
 
 #define x2apic_mode             (0)
 #define x2apic_supported()      (0)
-#endif
-
-extern void enable_IR_x2apic(void);
-
-extern int get_physical_broadcast(void);
-
-extern int lapic_get_maxlvt(void);
-extern void clear_local_APIC(void);
-extern void disconnect_bsp_APIC(int virt_wire_setup);
-extern void disable_local_APIC(void);
-extern void lapic_shutdown(void);
-extern void sync_Arb_IDs(void);
-extern void init_bsp_APIC(void);
-extern void setup_local_APIC(void);
-extern void init_apic_mappings(void);
-void register_lapic_address(unsigned long address);
-extern void setup_boot_APIC_clock(void);
-extern void setup_secondary_APIC_clock(void);
-extern int APIC_init_uniprocessor(void);
-
-#ifdef CONFIG_X86_64
-static inline int apic_force_enable(unsigned long addr)
-{
-        return -1;
-}
-#else
-extern int apic_force_enable(unsigned long addr);
-#endif
-
-extern int apic_bsp_setup(bool upmode);
-extern void apic_ap_setup(void);
-
-/*
- * On 32bit this is mach-xxx local
- */
-#ifdef CONFIG_X86_64
-extern int apic_is_clustered_box(void);
-#else
-static inline int apic_is_clustered_box(void)
-{
-        return 0;
-}
-#endif
-
-extern int setup_APIC_eilvt(u8 lvt_off, u8 vector, u8 msg_type, u8 mask);
-
-#else /* !CONFIG_X86_LOCAL_APIC */
-static inline void lapic_shutdown(void) { }
-#define local_apic_timer_c2_ok          1
-static inline void init_apic_mappings(void) { }
-static inline void disable_local_APIC(void) { }
-# define setup_boot_APIC_clock x86_init_noop
-# define setup_secondary_APIC_clock x86_init_noop
-#endif /* !CONFIG_X86_LOCAL_APIC */
+#endif /* !CONFIG_X86_X2APIC */
 
 #ifdef CONFIG_X86_64
 #define SET_APIC_ID(x)          (apic->set_apic_id(x))
diff --git a/arch/x86/include/asm/numachip/numachip.h b/arch/x86/include/asm/numachip/numachip.h
index 1c6f7f6212c1..c64373a2d731 100644
--- a/arch/x86/include/asm/numachip/numachip.h
+++ b/arch/x86/include/asm/numachip/numachip.h
@@ -14,6 +14,7 @@
 #ifndef _ASM_X86_NUMACHIP_NUMACHIP_H
 #define _ASM_X86_NUMACHIP_NUMACHIP_H
 
+extern u8 numachip_system;
 extern int __init pci_numachip_init(void);
 
 #endif /* _ASM_X86_NUMACHIP_NUMACHIP_H */
diff --git a/arch/x86/include/asm/numachip/numachip_csr.h b/arch/x86/include/asm/numachip/numachip_csr.h
index 660f843df928..29719eecdc2e 100644
--- a/arch/x86/include/asm/numachip/numachip_csr.h
+++ b/arch/x86/include/asm/numachip/numachip_csr.h
@@ -14,12 +14,8 @@
 #ifndef _ASM_X86_NUMACHIP_NUMACHIP_CSR_H
 #define _ASM_X86_NUMACHIP_NUMACHIP_CSR_H
 
-#include <linux/numa.h>
-#include <linux/percpu.h>
+#include <linux/smp.h>
 #include <linux/io.h>
-#include <linux/swab.h>
-#include <asm/types.h>
-#include <asm/processor.h>
 
 #define CSR_NODE_SHIFT          16
 #define CSR_NODE_BITS(p)        (((unsigned long)(p)) << CSR_NODE_SHIFT)
@@ -27,11 +23,8 @@
 
 /* 32K CSR space, b15 indicates geo/non-geo */
 #define CSR_OFFSET_MASK 0x7fffUL
-
-/* Global CSR space covers all 4K possible nodes with 64K CSR space per node */
-#define NUMACHIP_GCSR_BASE      0x3fff00000000ULL
-#define NUMACHIP_GCSR_LIM       0x3fff0fffffffULL
-#define NUMACHIP_GCSR_SIZE      (NUMACHIP_GCSR_LIM - NUMACHIP_GCSR_BASE + 1)
+#define CSR_G0_NODE_IDS (0x008 + (0 << 12))
+#define CSR_G3_EXT_IRQ_GEN (0x030 + (3 << 12))
 
 /*
  * Local CSR space starts in global CSR space with "nodeid" = 0xfff0, however
@@ -41,12 +34,7 @@
 #define NUMACHIP_LCSR_BASE      0x3ffffe000000ULL
 #define NUMACHIP_LCSR_LIM       0x3fffffffffffULL
 #define NUMACHIP_LCSR_SIZE      (NUMACHIP_LCSR_LIM - NUMACHIP_LCSR_BASE + 1)
-
-static inline void *gcsr_address(int node, unsigned long offset)
-{
-        return __va(NUMACHIP_GCSR_BASE | (1UL << 15) |
-                CSR_NODE_BITS(node & CSR_NODE_MASK) | (offset & CSR_OFFSET_MASK));
-}
+#define NUMACHIP_LAPIC_BITS     8
 
 static inline void *lcsr_address(unsigned long offset)
 {
@@ -54,114 +42,57 @@ static inline void *lcsr_address(unsigned long offset)
                 CSR_NODE_BITS(0xfff0) | (offset & CSR_OFFSET_MASK));
 }
 
-static inline unsigned int read_gcsr(int node, unsigned long offset)
+static inline unsigned int read_lcsr(unsigned long offset)
 {
-        return swab32(readl(gcsr_address(node, offset)));
+        return swab32(readl(lcsr_address(offset)));
 }
 
-static inline void write_gcsr(int node, unsigned long offset, unsigned int val)
+static inline void write_lcsr(unsigned long offset, unsigned int val)
 {
-        writel(swab32(val), gcsr_address(node, offset));
+        writel(swab32(val), lcsr_address(offset));
 }
 
-static inline unsigned int read_lcsr(unsigned long offset)
+/*
+ * On NumaChip2, local CSR space is 16MB and starts at fixed offset below 4G
+ */
+
+#define NUMACHIP2_LCSR_BASE       0xf0000000UL
+#define NUMACHIP2_LCSR_SIZE       0x1000000UL
+#define NUMACHIP2_APIC_ICR        0x100000
+#define NUMACHIP2_TIMER_DEADLINE  0x200000
+#define NUMACHIP2_TIMER_INT       0x200008
+#define NUMACHIP2_TIMER_NOW       0x200018
+#define NUMACHIP2_TIMER_RESET     0x200020
+
+static inline void __iomem *numachip2_lcsr_address(unsigned long offset)
 {
-        return swab32(readl(lcsr_address(offset)));
+        return (void __iomem *)__va(NUMACHIP2_LCSR_BASE |
+                (offset & (NUMACHIP2_LCSR_SIZE - 1)));
 }
 
-static inline void write_lcsr(unsigned long offset, unsigned int val)
+static inline u32 numachip2_read32_lcsr(unsigned long offset)
 {
-        writel(swab32(val), lcsr_address(offset));
+        return readl(numachip2_lcsr_address(offset));
 }
 
-/* ========================================================================= */
-/*                   CSR_G0_STATE_CLEAR                                      */
-/* ========================================================================= */
-
-#define CSR_G0_STATE_CLEAR (0x000 + (0 << 12))
-union numachip_csr_g0_state_clear {
-        unsigned int v;
-        struct numachip_csr_g0_state_clear_s {
-                unsigned int _state:2;
-                unsigned int _rsvd_2_6:5;
-                unsigned int _lost:1;
-                unsigned int _rsvd_8_31:24;
-        } s;
-};
-
-/* ========================================================================= */
-/*                   CSR_G0_NODE_IDS                                         */
-/* ========================================================================= */
+static inline u64 numachip2_read64_lcsr(unsigned long offset)
+{
+        return readq(numachip2_lcsr_address(offset));
+}
 
-#define CSR_G0_NODE_IDS (0x008 + (0 << 12))
-union numachip_csr_g0_node_ids {
-        unsigned int v;
-        struct numachip_csr_g0_node_ids_s {
-                unsigned int _initialid:16;
-                unsigned int _nodeid:12;
-                unsigned int _rsvd_28_31:4;
-        } s;
-};
-
-/* ========================================================================= */
-/*                   CSR_G3_EXT_IRQ_GEN                                      */
-/* ========================================================================= */
+static inline void numachip2_write32_lcsr(unsigned long offset, u32 val)
+{
+        writel(val, numachip2_lcsr_address(offset));
+}
 
-#define CSR_G3_EXT_IRQ_GEN (0x030 + (3 << 12))
-union numachip_csr_g3_ext_irq_gen {
-        unsigned int v;
-        struct numachip_csr_g3_ext_irq_gen_s {
-                unsigned int _vector:8;
-                unsigned int _msgtype:3;
-                unsigned int _index:5;
-                unsigned int _destination_apic_id:16;
-        } s;
-};
-
-/* ========================================================================= */
-/*                   CSR_G3_EXT_IRQ_STATUS                                   */
-/* ========================================================================= */
-
-#define CSR_G3_EXT_IRQ_STATUS (0x034 + (3 << 12))
-union numachip_csr_g3_ext_irq_status {
-        unsigned int v;
-        struct numachip_csr_g3_ext_irq_status_s {
-                unsigned int _result:32;
-        } s;
-};
-
-/* ========================================================================= */
-/*                   CSR_G3_EXT_IRQ_DEST                                     */
-/* ========================================================================= */
-
-#define CSR_G3_EXT_IRQ_DEST (0x038 + (3 << 12))
-union numachip_csr_g3_ext_irq_dest {
-        unsigned int v;
-        struct numachip_csr_g3_ext_irq_dest_s {
-                unsigned int _irq:8;
-                unsigned int _rsvd_8_31:24;
-        } s;
-};
-
-/* ========================================================================= */
-/*                   CSR_G3_NC_ATT_MAP_SELECT                                */
-/* ========================================================================= */
-
-#define CSR_G3_NC_ATT_MAP_SELECT (0x7fc + (3 << 12))
-union numachip_csr_g3_nc_att_map_select {
-        unsigned int v;
-        struct numachip_csr_g3_nc_att_map_select_s {
-                unsigned int _upper_address_bits:4;
-                unsigned int _select_ram:4;
-                unsigned int _rsvd_8_31:24;
-        } s;
-};
-
-/* ========================================================================= */
-/*                   CSR_G3_NC_ATT_MAP_SELECT_0-255                          */
-/* ========================================================================= */
-
-#define CSR_G3_NC_ATT_MAP_SELECT_0 (0x800 + (3 << 12))
+static inline void numachip2_write64_lcsr(unsigned long offset, u64 val)
+{
+        writeq(val, numachip2_lcsr_address(offset));
+}
 
-#endif /* _ASM_X86_NUMACHIP_NUMACHIP_CSR_H */
+static inline unsigned int numachip2_timer(void)
+{
+        return (smp_processor_id() % 48) << 6;
+}
 
+#endif /* _ASM_X86_NUMACHIP_NUMACHIP_CSR_H */